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Goniometer Stages![]()
GN1 GNL10 GN05 GNL18 GNL20 GN2 Virtual Rotation Points ![]() Please Wait Features
A goniometer or goniometric stage is a device used to rotate an object precisely, within a small angular range, about a fixed point in space. Goniometers are similar to linear stages, but, rather than providing linear movement, the stage partially rotates about a fixed point above the mounting surface of the stage. In our two product lines, the distance from the point of rotation to the mounting surface was designed so that two different goniometer models may be stacked in an XY configuration and both stages will rotate about the same point. Our goniometers use a backlash-free leadscrew in the smaller GN series and a precision micrometer for enhanced angular positioning of the top plate in the larger GNL series. ![]() Our goniometers offer unobstructed, pure rotational motion about their point of rotation over the angle of rotation (see image to the right). The compact, stackable design allows one model to be fastened to the top plate of another aligning their points of rotation. In the GN series, the GN05(/M) mounts atop the GN1(/M). In the GNL series, the GNL10(/M) mounts atop the GNL18(/M). These two axis stage setups can be purchased as a single package [GN2(/M) or GNL20(/M) respectively]. The precision dovetail design, accompanied by a backlash-free lead screw and a vernier scale, provides accurate and repeatable positioning. A side mounted setscrew can be used to lock the platform in position. The GN series goniometers provide an array of four 2-56, four 4-40 (M2.5 x 0.45), and eight 6-32 (M3 x 0.5) taps for mounting. This series can be either post mounted via an 8-32 (M4) tap or mounted to a mini series breadboard via the slotted mounting holes. Alternatively, the GNL series offers twelve 4-40 (M2.5 x 0.45) and sixteen 6-32 (M4 x 0.7) taps. See below or the Specs tab for mounting hole position. Our PM3(/M) and PM4(/M) clamping arms feature 6-32 (M4) threads, allowing them to be attached to most goniometers. Single-Axis Goniometers
Dual-Axis Goniometers
![]() Click for Details GNL Series Mounting Options ![]() Click for Details GN Series Mounting Options ![]() Smart Pack
Thorlabs' Green Initiative is aimed at reducing waste. To that end, we have begun to re-engineer our product packaging. The GL10 and GL18 are now shipped in re-engineered packaging that minimizes the use of non-recyclable materials. Over the course of a year, the re-engineered packaging across our product line is projected to reduce our CO2 footprint by more than 16,184 kg and reduce packaging by over 13,893 pounds! As we move through our product line, we will label re-engineered packages with our green Smart Pack sticker (above).
![]() ![]() Click to Enlarge Small Platform Goniometer Dimensions ![]() Click for Details Mounting Options
![]() ![]() Click to Enlarge Large Platform Goniometer Dimensions ![]() Click for Details Mounting Options
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